Separable-fastener-locking device



Nov. 5, 1929. SUNDBACK 1,734,750

SEPARABLE FASTENER' LOCKING DEVICE Filed Feb. 11, 1925 I INVZTOR BY ATTORNEY Patented Nov.. 5, 1929 UNITED STATES PATENT OFFICE.

- GIDEON SUNDBAOK, OF MEADVIL'LiE, PENNSYLVANIA, ASSIGNOB TO HOOKLESS FAS- TENER COMPANY, 01 MEADVILLE, PENNSYLVANIA A CORPORATION OF VANILA.

PENNSYL- SEPARAIBLE-FASTENER-LOCKING. DEVICE Application filed February Old sliders had locking means which in-' creased the overall length of the slider as.

they were usually attached over the outer 1o ends of the diverging channels. According to this invention, a lock is provided which is automatic in action being actuated by a slider pull device and which may be applied intermediate the slider ends WlthOllt'lIlCIGflS- ing its length, thereby enabling this look to be used on a compact form of slider.

In the accompanying drawings, F1gure 1 illustrates the device in locked pos1t1on on a partially opened fastener,

Fig. 2 is a front view of the slider of th s invention with the device in unlocked pos1- tion Fig. 3 is a side view of the device of Fig. 2,

Fig. 4 is a detail of the pull, and

Fig. 5 is a perspective of the lock1ng device before being attached to a sllder.

In the drawing a pair of stringers 10 are provided with locln'ng members 11 of the general nature of those descrlbed in my previous Patent #1,219,881 of March 20, 1917. The slider 12 has wings 16 and 17 forming diverging channels through WhlCh' pass the locking members 11, in being engaged or disengaged by the slider, and one or both of the wings preferably have inturned flanges as shown in Fig. 3 for guiding the slider along the locking members 11. On one wing 1s a lug 14 preferably integral therewith having recesses 15 in its opposite sides in WhlCll is pivoted the pull device 13. In the embodiment illustrated theslider wings 16 and 17 are joined by an integral bent stifi'ened portion 18which retains the wings in their spaced relation and prevents their spreading and also enables the slider to be made.

stamping 19 which is brazed or soldered to 11, 1925. Serial mam.

in as compact a form as is possible. This slider is of the type disclosed in my Patent #1,661,144 of February 28, 1928. The locking device comprises an inverted U-shaped the wing 17 beneath the attachment of said pull device. Projecting centrally of the stamping 19 is a resilent portion or spring blade 20 having therein a perforation 21 surrounding the pull attaching lug and provided at its lower end with an inwardly extending tongue or detent 24 adapted to be inserted through the perforation 25 in the wing 17 and into engagement with the locking members 11 to prevent movement of the locking members through the slider. The perforation 25 is located near the narrow end of the wing 17 so that the locking tongue 24 will engage locked interlocking members. This insures that the interlocking members will not be loosened on the stringer by strain on the locked slider. As shown in Fig. 4, the pull device comprises projections 22 which are pivoted within the attaching lug 14. Extending from the plane of the pull in the manner shown are the projections 23 which cooperate with the resilient portion 20 and press it downward when the pull is moved to the position shown in Fig. 3 in dotted lines. Upon grasping the pull device 13 in the fingers and raising it into operative position, shown for example in Fig. 2, the projections 23 are moved downwardly out of the way so that. the resilient portion 20 may be raised by its own spring action or resiliency and allow the tongue 24 to be withdrawn from the perforation 25 so that the locking members 11 may be freely moved through the slider channels.

' locking members 11 This automatic action of the locking device is inherent when the sliderisvertically movable and is also present whenthe slider is movable horizontally,'pro .I vidcdt-he' pull device is moved to thes de illustrated for engagement with the resilient portion of the locking device. Another advantage of this invention resides in its adaptability to sliders without increasing the overall length so that its application does not result in as long a slider as has been previously used. With the inner end of the tongue having sharp corners, as illustrated, the locking action of the tongue will be positive since the sharp edges of the tongue will engage the locking members and prevent their being moved through the slider channels. If the inner end of said tongue 24 were not made as sharply as illustrated, the tonguewould still have a locking action by reason of its strong braking effect upon any movement .of thelocking members through the slider. If the weight of the pull device is not sufficient a positive locking means of some sort may be used to retain the pull in position pressing the tongue into locking position, and such means may include a padlock, hasp, or other device. This invention is not only adapted for fasteners of the type shown by my previous Patent #1,219,881 of March 20, 1917, but is also adapted for the slide type fastener in which the locking members are arranged oppositely instead of alternately and especially where the pairs of locking members are spaced apart longitudinally along the stringers. The spring of this invention need not be separate from the slider proper but may be formed from a part of the wing material. This type of locking means is adapted for use with a pull device which may slide longitudinally within the lug 14. Instead of being automatic a more certain and preferable construction results when force is necessary to mov the pull device down into locked position and when the weight of the pull itself is not sufficient, for with such a preferred construction the fiat surfaces of the sets of projections 22 and 23 help retain it in locked position and prevent the pull being moved out of locked position accidentally. I

I claim:

1. A separable fastener slider comprising wings forming diverging channels, a pull device pivoted to one of the wings intermediate the ends of the slider, and a locking means on the slider between said pull device and its adjacent wing.

2. A separable fastener slider comprising wings forming diverging channels, a locking tongue on said slider insertable into one of said channels through a hole in one ofthe wings, a pull device for the slider, and means controlled by said pull device .for inserting and withdrawing said tongue from said channel through the hole,

3. A scparable'fastener slider comprising wings forn'lingf divcrging'channels, a pull -dcvice pivoted to one of the wings adjacent the longitudinal and transverse center thereof, a "perforation beneath and in the wing having the pull device attached, 7 a tongue movable through said perforation and into the channel beneath, means connecting said tongue to'said 3 wing and means between said pull device and said connecting means for actuating the same by said pull device. I 3' y 4. A separable fastener slid'e r comprising wings forming diverging channels, a pull device pivoted to one of the wings adj acentthe longitudinal and transversecenter thereof, a perforation beneath and in the wing having the pull device attached, a tongue movable through said perforation and into the channel beneath, a resilient metal strip connecting said tongue to said wing and means between said pull device and said strip'for actuating .the same by=said pull device.

5. The combination with a pairof stringers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, said slider having a perforation adjacent the path of said interlocking members when locked, a movable locking tongue on said slider in position to pass through said perforation to en gage interlocked members to lock the slider against movement, and a pull device pivoted on said slider for controlling said tongue to lock the slider and for moving the slider when unlocked.

6. The combination with a quick operating fastener comprising opposed series of interlocking elements on the edges of the parts which are to be connected together and an operating member movable along the series 105 of elements for interlocking and releasing same, of a locking device on the operating member adapted to hold the latter against movement along the series of interlocking elements, and a lever hinged on the operat- 1 I .ers having interlocking members thereon, of .11

a slider movable along said stringers to con. trol said interlocking members, a locking device mounted upon said slider in position to engage said interlocking members, a pull device pivoted on said slider, and means ad-" jacent the pivot of said pull device for actuating said locking device.

8. The combination with a pair of stringers having interlocking. members thereon, of a slider movable along said stringers to control said interlocking members, aspull-device for said slider, a lug on 'saidslider' in which said pull device is pivoted, means-for clamping the slider to said interlocking members in any position of the slider,=and

means adjacent to pivot of said pull for actuating said clamping means.

9. The combination with a pair of stringers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, a spring blade on said slider carrying a locking detent in position to engage sald interlocking members and normally supporting the detent in released position, a pull device pivoted on said slider, and means adjacent the pivot of said pull device to depress said spring blade.

10. The combination with a pair of stringers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, a yieldable portion on said slider, a movable pull device on said slider, and means responsive to movement of said pull device for clamping said yieldable portion against said interlocking members, said means being shaped to retain said pull device in inoperative position when clamping said yieldable ortion.

11. The combination with apair oFstringers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, a spring blade on said slider having a locking tongue in position to engage said interlocking members to lock the slider, and a pull device pivoted on said slider intermediate the ends thereof and adapted to depress said spring blade to hold the locking tongue in engagement with said interlocking members.

12. The combination with a pair of stringers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, a locking spring on said slider having a portion adapted to engage said interlocking members to arrest the movement of said slider, a pull device having a portion pivoted on said slider, and a projection on said pull device substantially at right angles thereto to depress said locking'spring when said pull device is in inoperative position.

13. The combination with a pair of stringers having interlocking members thereon, of a slider movable along said stringers to c0ntrol said interlocking members, a spring blade on said slider carrying a locking tongue in position to engage said interlocking members and normally supporting the ton e in released position, and a pull device plvoted on said slider having a projection adjacent the pivot to depress said spring blade and hold it depressed.

14. The combination with a pair of string ers having interlocking members thereon, of a slider movable along said stringers to control said interlocking members, a spring blade on said slider carrying a locking detent secured at one end upon one of said wings and normally supporting the detent in released position, a recess in one wing. 

